Think about it. Every daily quest hub we've had this expansion has had a direct portal from Boralus/Dazaralor—Arathi. Darkshore. Nazjatar. Mechagon had the craftable teleport.
So why not Uldum and Vale? Are they not the same concept? Each is a focal-point-of-the-patch zone full of dailies, rares, world bosses, and fill the bars. Arathi and Darkshore get portals and you only visit them once every 2 weeks. Uldum and Vale are intended to be visited every single day for months. I dont understand the sudden change in design direction. Why make us RP walk over to the main zones every day? Seems kinda arbitrary?
I mean, you may not mind now, but I imagine I'm going to be fairly aggravated on my 87th flight from jade forest to Vale, you know?